Why does it have a M rating?
2742
I think because of the violence , blood , some gore, there is also a brothel, and just the subject matter over all else. But Those are the only reasons that I can think of. And why they gave it an M rating.
1299109
Check this link for different MERV... http://www.mechreps.com/PDF/Merv_Rating_Chart.pdf
15501
No, I don't think so. I've used the M tape for along time and have never seen the characteristic that you're seeking.
1247479
Off the top of my head, not sure. But if you go to the 3M website you can find all of the answers to any technical concerns.
1745098
Going from 900 to 2000 will more than double your time using the battery. The mAh rating is the capacity of the battery, or put simply how long it will last.
606298
Not sure what it measures in mms thick, but it is not flimsy. Very heavy duty.
893015
the m hasfm recording the w doesn't. the w has a much bigger screen, I think the same resolution. finally, for guys like me who have a neurological tremor in their hands, the m is a nightmare compared to the very workable w. choice goes to the w by far which also has anormative mike like the m.
1602198
Not very good. I stopped using mine because it was more trouble then it was worth. I guess it's a personal preference.
554516
Give a proper rating...warn others......maybe send it back for a detective product if u want to go through the trouble...or deal with it and do not make any changes because it may destroy the properties of the case... GL :)
13740
The MERV rating is a standards manufacturers use to compare the efficiency of filters. The higher the rating, the better the efficiency I picked the following information off another site "the following MERV ratings measure filtration efficiency of particles ranging from 0.3 microns and up. With more an more emphasis being placed on micro particles, 3M developed their MPR Micro Particle Rating to measure filtration of even smaller particles, down to .001. Some competitors are beginning to adopt the new standard that 3M developed but there is still predominant use of MERV. As a reference, the 3M Micro furnace filters have a MPR of 1000. Their rough equivalent MERV rating is 13-14. So while their is currently no sure equation way to convert MERV to MPR, if you use the approximate MERV rating of the Micro filter MPR rated at 1000, then the 4" filters MPR rated at 1550 would conceivably exceed MERV 18, which currently puts their filtration in line with the more expensive NordicPure furnace filters. Because 3M uses this different measuring scale and system, it's difficult to do a straight comparison."
273370
Dear Doyle - same problem here - generic 3M packaging with no clue as to MPR rating. This could be significant as the lowest rated MPR may be 1/2 of the price of the highest rated filter.
1791073
Dear Mr. Stine It is rather odd that the company could not give you a rating. It sounds like ignorance or being in a state of ineptness. They should not expect big sales if they cannot define their product.
2086352
I don't know. I'm satisfied with it. Sorry, but I haven't done anything very demanding with it to really comment on its performance quality.
613892
Milliamps Hour (mAh) is important because it's the easiest way to distinguish the strength or capacity of a battery. The higher the mAh, the longer the battery will last. Batteries with different mAh ratings are interchangeable. If your battery is rechargeable then the mAh rating is how long the battery will last per charge.Milliamps Hour is 1/1000th of a Amp Hour, so a 1000mAh = 1.0AhThink of a cars gas tank. Voltage is how much gas is being used, and mAh is the size of the gas tank. The bigger the gas tank (mAh) rating the longer the device will run. If your battery is rechargeable, then think of the gas tank as refillable (rechargeable). Milliamps Hour (mAh) is important because it's the easiest way to distinguish the strength or capacity of a battery. The higher the mAh, the longer the battery will last. Batteries with different mAh ratings are interchangeable. If your battery is rechargeable then the mAh rating is how long the battery will last per charge.Milliamps Hour is 1/1000th of a Amp Hour, so a 1000mAh = 1.0AhThink of a cars gas tank. Voltage is how much gas is being used, and mAh is the size of the gas tank. The bigger the gas tank (mAh) rating the longer the device will run. If your... » Read More Milliamps Hour (mAh) is important because it's the easiest way to distinguish the strength or capacity of a battery. The higher the mAh, the longer the battery will last. Batteries with different mAh ratings are interchangeable. If your battery is rechargeable then the mAh rating is how long the battery will last per charge.Milliamps Hour is 1/1000th of a Amp Hour, so a 1000mAh = 1.0AhThink of a cars gas tank. Voltage is how much gas is being used, and mAh is the size of the gas tank. The bigger the gas tank (mAh) rating the longer the device will run. If your battery is rechargeable, then think of the gas tank as refillable (rechargeable). « Show Less
1129292
It can be set to display either Miles or KM. Zoom on the Amazon Photo & you will see a faint KM under the MI (Miles) indicator since the photo shows the unit in English units mode.
1681560
Hi I am not sure of the rating, but the head phones are not very good, not clear
1052012
The M designation in C720-M (as compared to the C720) stands for "Optimized for Microsoft Lync" which "means that a communications device will provide a high quality user experience, with 'just works' installation, audio and video, and a lower total cost of ownership. Microsoft tests and qualifies phones, headsets, webcams, conference room devices, PCs and other devices for Lync under its Compatible Devices Program." I have not found any actual hardware difference specified anywhere online as of this date.